The second chart shows the trend in gasoline prices from mid-2007:
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So when you combine no growth in miles driven and consumers shifting to more fuel-efficient vehicles you get negative change in demand for gasoline.
"It's sometimes suggested that hedge funds, commodity pools and speculators don't actually drive up the price of oil, because they don't actually take delivery of the physical product – instead rolling their futures contracts over indefinitely or until they close out their positions. From an equilibrium standpoint, however, this argument ignores the zero-sum nature of the futures market.
Producers have an interest in selling their output forward to lock in a predictable price. Similarly, bona-fide hedgers (such as transportation and industrial companies) have an interest in buying their oil forward so they can plan without concern about future fluctuations.To the extent that the speculators begin to take one-sided trend-following positions, their purchase of a futures contract crowds out the purchase that a hedger would otherwise be able to make from a producer.
It doesn't matter that the speculator has no intent to take delivery. What matters is that if the speculators are unbalanced on one side, the producers will have satisfied their need to pledge future delivery. Moreover, because they can lock in a high price, they will be inclined to sell more for future delivery than they otherwise would. Meanwhile bona-fide hedgers will be inclined to buy less on the forward market than they otherwise would. You can see this combination of effects in the commitments data, as a tendency for commercials as a group to become net short following significant price increases in oil.When it comes time for the speculators to roll the contracts forward, they have to sell their existing contracts either to someone who is willing to take delivery, or to a producer who sold the oil forward and can now clear that liability without actually producing the stuff. Given relatively high spot demand and tight supply, these rolling transactions have worked fine to this point, without driving prices lower."
"The market's bearish turn this week erases, at least for the time being, the effect of a rally that pushed prices past $145 in a string of record-setting sessions before the Fourth of July.
Analysts attributed much of the recent sell-off to profit-taking, saying traders were cashing in on the previous week's gains. ..Still, analysts warned the pullback could be fleeting. "For the time being it's what we call corrective. ... It's a profit-taking pullback that could still be followed by fresh highs down the road," said Jim Ritterbusch, president of energy consultancy Ritterbusch and Associates. Ritterbusch said Tuesday's decline may have gained added momentum when computer models used by large investment funds automatically sold oil contracts once prices fell to a pre-set threshold. "A significant part of it's technical," he said of the day's trading. "A lot of these funds don't watch supply and demand fundamentals."
..."One theory as to why commodities are hot it that they are the last game that does NOT require leverage from the banking system. Commodities futures require low margin deposits."That is part of the answer, I think.
There it is, plain as day..."A LARGE warehouse in Amsterdam may seem an unusual place to attract the City’s top traders and hedge funds. But, in the past few months, Morgan Stanley has been accumulating warehouse space in the Netherlands to store its hottest new property — oil...Meanwhile, banks such as Morgan Stanley are also beginning to move into the physical market to buy oil — or even entire oilfields.Goldman Sachs recently bought 10m barrels of oil...Morgan Stanley and Deutsche bank recently bought the rights to 36m barrels of oil between 2007 and 2010 direct from a North Sea oilfield.Source"
"The shrewdest competitors in the energy-trading world these days deal heavily in physical shipments of fuel, not just contracts for the future delivery of such commodities. Owning actual oil, natural gas, propane and even electricity has two big advantages. It provides detailed knowledge of regional supply and demand and the pricing power that comes from holding large quantities of commodities.[...]An explosion in the number of participants in the energy-trading world has led to an increase in so-called physical trading.Dominant commodity traders such as Morgan Stanley and Goldman Sachs Group Inc. long have had strategies to own or lease fuel-storage terminals, oil tankers and power plants to give them more flexibility to hold onto inventory or sell it at opportune moments.More recently, those Wall Street firms have taken physical trading to new levels with bids to buy, not lease, distribution facilities such as pipelines and production facilities including refineries. Hedge funds also have gotten into the game of dealing in physical energy and even metals assets."So when Goldman makes a forecast for the price of oil, it's based on their knowledge of their own holdings...and since price volatility happens at the margin they are in good shape to take advantage.